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    <title>Document</title>
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    <script>
        //使用function*可以声明一个状态机对象，yield关键字  用来定义一个个状态
        //调用generator函数后返回一个iterator对象每次调用iterator对象上的next方法，可以执行
    function* generator(){
        yield console.log(1);
        yield console.log(2);
        yield console.log(3);
        yield console.log(4);
        yield console.log(5);
    }
    const gen =generator()
    gen.next()
    gen.next()
    gen.next()
    gen.next()
    gen.next()




    </script>
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